c.Illustration of TextArea Component. Take input from user in TextField and add it to TextArea.

CODE:

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class TextAreaDemo extends JFrame implements ActionListener

{

JLabel lblMsg;

JTextField txtMsg;

JTextArea txt;

JButton btnAdd;

JPanel p1,p2;

TextAreaDemo()

{

setTitle("JTextArea Demo");

   setSize(400, 400);

   setVisible(true);

   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

lblMsg=new JLabel("Enter Text Here");

txtMsg=new JTextField(20);

  txt=new JTextArea(10,30);

  btnAdd=new JButton("Add");

p1=new JPanel();

p2=new JPanel();

JScrollPane sp=new JScrollPane(txt);

p1.add(lblMsg);

p1.add(txtMsg);

p1.add(btnAdd);

p2.add(sp);

btnAdd.addActionListener(this);

getContentPane().add(p1,BorderLayout.CENTER);

getContentPane().add(p2, BorderLayout.SOUTH);

}

public void actionPerformed(ActionEvent ae){

if(ae.getSource()==btnAdd)

{

String str=txtMsg.getText();

txt.append(str+"\n");

txtMsg.setText("");

}

}

public static void main(String args[])

{

new TextAreaDemo();

}

}

 

OUTPUT:

d.Program on TextArea with copy,cut and paste buttons.

e.Develop swing application login form accept Username and Password , on click show successful or unsuccessful depending on input.

f. Develop swing application to present set of choices for a user to select different colours, on selection of colour the background of application changes its colour respectively.

g. Develop swing application to present set of choices for a user to select stationary product and display the prize of product after selection from list.

h. Program to illustrate the use of JComboBox.

i. Develop swing application to concatenate two strings entered in TextField, on click of the command button, concatenated string should display in third TextField.

j.Develop swing application to display factorial of given number.

ADVANCED JAVA PROGRAM